21319958

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{8009}}^1$

素因数の和:8044

約数の個数: 16

約数和(自身を含む): 35179920

約数和(自身を除く): 13859962

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 8009, 16018, 88099, 176198, 969089, 1938178, 10659979, 21319958]

約数ペア:

[(1, 21319958), (2, 10659979), (11, 1938178), (22, 969089), (121, 176198), (242, 88099), (1331, 16018), (2662, 8009)]